express meaning of unused param
unnecessary test removed
removing the test is not enough...
Fixes #770: Error message on (un)subscribe if an activity does not exist
add simple tag cloud to the members index page
no wiki icon in group list if wiki is empty
Merge pull request #783 from mknittig/bug-770

Fixes #770: Error message on (un)subscribe if an activity does not exist
Merge pull request #784 from heisee/master

add simple tag cloud to the members index page
remove console.log, comments and split only on commas
Merge pull request #786 from heisee/master

[tagcloud] remove console.log, comments and split only on commas
Removed information for SoCraTes conference.
fixed testing issue with undefined value
"Leave Group" button is now white instead of blue.
Merge pull request #785 from janunger/master

minor improvement: no wiki icon in group list if wiki is empty
url-encodes special chars in json strings that are embedded in the HTML, sanitizes some chars from the interestets in the tag cloud
Merge pull request #788 from heisee/master

[tagcloud] url-encodes special chars in json strings that are embedded in the HTML,  sanitizes some chars from the interestets in the tag cloud
Merge pull request #787 from NicoleRauch/master

Minor beautifications.
replace custom "grunt-mocha-istanbul" by official release
"jqcloud" - use non-minified file in Gruntfile as we minify ourselves
"jqcloud" - move css up in our screen.css